Computer Awareness for Bank Exams: Quick Answer
Computer awareness is a scoring section because the questions are short and factual. In IBPS RRB Mains (Officer Scale I and Office Assistant), Computer Knowledge is a separate test of 40 questions for 20 marks in 15 minutes, as per the official CRP RRBs-XV notification. The same topics also help in SSC CGL Tier 2's Computer Knowledge Test (20 questions, qualifying) and in bank Mains papers that test computer aptitude with reasoning. The most-asked areas are hardware and memory, number systems, MS Office and shortcuts, networking and the internet, and cyber security.
Key takeaway: 40 questions in 15 minutes is about 22 seconds a question. Computer awareness is pure recall: revise the tables on this page until each answer comes in under 10 seconds.
Dates to plan around (official calendars): IBPS RRB PO Mains on 20 December 2026 and IBPS RRB Office Assistant Mains on 30 January 2027 (IBPS calendar 2026-27); SSC CGL Tier 2 tentatively in December 2026 (CGL 2026 notice).
Where Computer Awareness Is Tested (Official Patterns)
| Exam | Test | Questions / marks / time | Source |
|---|---|---|---|
| IBPS RRB PO (Scale I) Mains | Computer Knowledge | 40 / 20 / 15 min | CRP RRBs-XV notification |
| IBPS RRB Office Assistant Mains | Computer Knowledge | 40 / 20 / 15 min | CRP RRBs-XV notification |
| IBPS RRB Officer Scale II and III | Computer Knowledge | 40 / 20 / 15 min | CRP RRBs-XV notification |
| SSC CGL Tier 2, Paper I | Computer Knowledge Test (qualifying) | 20 / 60 / 15 min | SSC CGL 2026 notice |
1. Hardware Basics
| Term | What to remember |
|---|---|
| CPU | "Brain" of the computer; has the ALU (arithmetic and logic), CU (control unit) and registers |
| Input devices | Keyboard, mouse, scanner, microphone, webcam, OMR, MICR, barcode reader |
| Output devices | Monitor, printer, speaker, plotter, projector |
| Both input and output | Touch screen, modem, network card |
| MICR | Magnetic Ink Character Recognition; used by banks to read cheque details |
| OMR | Optical Mark Recognition; used to check answer sheets |
| Motherboard | Main circuit board connecting CPU, memory and other parts |
| Port | Connection point; e.g. USB, HDMI, Ethernet (RJ45) |
2. Memory and Storage
| Type | Key facts |
|---|---|
| RAM | Primary, volatile (data lost when power goes off), read and write |
| ROM | Primary, non-volatile, stores firmware such as BIOS |
| Cache | Very fast memory between CPU and RAM |
| Registers | Fastest memory, inside the CPU |
| Secondary storage | Hard disk, SSD, pen drive, CD/DVD; non-volatile |
| Virtual memory | Part of the hard disk used as extra RAM |
Speed order (fastest first): Registers → Cache → RAM → SSD/Hard disk.
Memory units: 1 nibble = 4 bits; 1 byte = 8 bits; 1 KB = 1,024 bytes; 1 MB = 1,024 KB; 1 GB = 1,024 MB; 1 TB = 1,024 GB; then PB, EB, ZB, YB.
3. Number Systems
| System | Base | Digits |
|---|---|---|
| Binary | 2 | 0, 1 |
| Octal | 8 | 0–7 |
| Decimal | 10 | 0–9 |
| Hexadecimal | 16 | 0–9 and A–F (A = 10 … F = 15) |
Worked examples: binary 1011 = 8 + 0 + 2 + 1 = 11 in decimal. Decimal 25 = 11001 in binary. Hex 1F = 16 + 15 = 31 in decimal.
4. Software and Operating Systems
| Term | Meaning |
|---|---|
| System software | Runs the computer: operating system, device drivers, utilities |
| Application software | Does user tasks: MS Word, Excel, browsers |
| Operating system examples | Windows, Linux, macOS, Android, iOS |
| Compiler | Translates the whole program at once |
| Interpreter | Translates and runs line by line |
| Assembler | Converts assembly language to machine code |
| Open-source | Source code is public, e.g. Linux |
| Booting | Starting the computer; cold boot (from off), warm boot (restart) |
5. MS Office and Shortcut Keys
| Shortcut | Action |
|---|---|
| Ctrl + Z / Ctrl + Y | Undo / Redo |
| Ctrl + A | Select all |
| Ctrl + S / F12 (Word) | Save / Save As |
| Ctrl + P | |
| Ctrl + K | Insert hyperlink |
| Ctrl + Home / Ctrl + End | Go to start / end of document |
| F7 (Word) | Spelling and grammar check |
| F5 (PowerPoint) | Start slide show from the beginning |
| F2 (Excel) | Edit the active cell |
| F4 (Excel, while editing a formula) | Toggle absolute/relative reference ($A$1) |
| Ctrl + ; (Excel) | Insert today's date |
| Alt + F4 | Close the active window |
Excel facts: a formula starts with "="; the intersection of a row and column is a cell; a file is a workbook with worksheets; =SUM(), =AVERAGE(), =COUNT(), =MAX() and =IF() are the most-asked functions.
6. Networking and the Internet
| Term | Key facts |
|---|---|
| LAN / MAN / WAN | Local (building/campus) / Metropolitan (city) / Wide area (country or world; the internet is the largest WAN) |
| Topologies | Bus, star, ring, mesh, tree; star uses a central hub or switch |
| Router | Connects different networks and directs data packets |
| Switch | Connects devices inside one network |
| Modem | Modulator-demodulator; converts digital and analog signals |
| IP address | Numerical address of a device; IPv4 is 32-bit, IPv6 is 128-bit |
| DNS | Converts domain names (like example.com) into IP addresses |
| URL | Address of a web page |
Common Protocols and Ports
| Protocol | Use | Default port |
|---|---|---|
| HTTP | Web pages | 80 |
| HTTPS | Secure web pages (encrypted) | 443 |
| FTP | File transfer | 21 |
| SMTP | Sending e-mail | 25 |
| POP3 | Receiving e-mail (downloads it) | 110 |
| IMAP | Receiving e-mail (keeps it on the server) | 143 |
| DNS | Name resolution | 53 |
7. Cyber Security Terms (Very Important for Bankers)
| Term | Meaning |
|---|---|
| Phishing | Fake e-mails or websites that trick users into revealing passwords or card details |
| Vishing / Smishing | Phishing by voice call / by SMS |
| Malware | Any harmful software |
| Virus | Attaches to files and spreads when they are run |
| Worm | Spreads on its own across networks |
| Trojan horse | Looks useful but hides harmful code |
| Ransomware | Locks or encrypts data and demands payment |
| Spyware / keylogger | Secretly records activity or keystrokes |
| Firewall | Filters network traffic to block unauthorised access |
| Two-factor authentication | Login using two proofs, e.g. password + OTP |
| Encryption | Converting data into a code only authorised parties can read |
For banking-specific abbreviations, see computer abbreviations for bank exams; for payment systems, see NEFT, RTGS, IMPS and UPI difference.
Computer Awareness: 20 Practice MCQs
Q1. Which memory is volatile? (a) ROM (b) RAM (c) Hard disk (d) DVD Answer: (b).
Q2. MICR technology is used mainly by: (a) Hospitals (b) Banks for cheques (c) Railways for tickets (d) Schools for attendance Answer: (b).
Q3. The binary number 1101 equals which decimal number? (a) 11 (b) 12 (c) 13 (d) 14 Answer: (c). 8 + 4 + 0 + 1.
Q4. One byte equals: (a) 4 bits (b) 8 bits (c) 16 bits (d) 1,024 bits Answer: (b).
Q5. Which is the fastest memory? (a) Cache (b) RAM (c) Registers (d) SSD Answer: (c).
Q6. Which shortcut opens "Save As" in MS Word? (a) F7 (b) F12 (c) Ctrl + S (d) F5 Answer: (b).
Q7. In MS Excel, every formula begins with: (a) # (b) @ (c) = (d) $ Answer: (c).
Q8. Which protocol is used to send e-mail? (a) POP3 (b) IMAP (c) SMTP (d) FTP Answer: (c).
Q9. The default port for HTTPS is: (a) 21 (b) 80 (c) 110 (d) 443 Answer: (d).
Q10. DNS converts: (a) IP addresses into MAC addresses (b) Domain names into IP addresses (c) Text into binary (d) Analog into digital Answer: (b).
Q11. A network spread across a city is a: (a) LAN (b) MAN (c) WAN (d) PAN Answer: (b).
Q12. In which topology are all devices connected to a central hub? (a) Bus (b) Ring (c) Star (d) Mesh Answer: (c).
Q13. Malware that encrypts files and demands payment is: (a) Worm (b) Ransomware (c) Adware (d) Firewall Answer: (b).
Q14. A fraudulent SMS asking for an OTP is an example of: (a) Smishing (b) Vishing (c) Spamming (d) Hacking a server Answer: (a).
Q15. Which software translates a whole program at once? (a) Interpreter (b) Compiler (c) Assembler (d) Loader Answer: (b).
Q16. IPv6 addresses are how many bits long? (a) 32 (b) 64 (c) 128 (d) 256 Answer: (c).
Q17. The hexadecimal digit "F" stands for decimal: (a) 14 (b) 15 (c) 16 (d) 10 Answer: (b).
Q18. Which device connects two different networks? (a) Hub (b) Repeater (c) Router (d) Monitor Answer: (c).
Q19. Restarting a computer that is already on is called: (a) Cold boot (b) Warm boot (c) Shut down (d) Log off Answer: (b).
Q20. Which of these is application software? (a) Windows (b) Linux (c) Device driver (d) MS Excel Answer: (d).
Computer Awareness FAQs
How many computer questions come in IBPS RRB PO Mains?
Computer Knowledge is a separate test of 40 questions for 20 marks in 15 minutes, as per the CRP RRBs-XV notification.
Is computer knowledge asked in IBPS Clerk Mains?
The CRP CSA-XVI notification lists four Mains tests (General/Financial Awareness, General English, Reasoning Ability and Quantitative Aptitude) and no separate computer test. Basic computer terms can still appear in awareness questions.
What are the most important topics in computer awareness?
Memory and storage, number systems, MS Office shortcuts, networking and protocols, and cyber security terms such as phishing, malware and firewalls.
Is the SSC CGL Computer Knowledge Test qualifying?
Yes. It has 20 questions in 15 minutes and is mandatory but qualifying; posts needing computer proficiency have a higher standard.
How can I score full marks in computer awareness?
Revise the tables on this page daily for two weeks, practise 20 MCQs a day, and learn shortcut keys by actually using them on a computer.
Practice Next for Bank Exams
- Plans: IBPS RRB PO preparation plan 2026, IBPS Clerk Mains preparation strategy 2026, SSC CGL Tier 2 preparation strategy
- Patterns: IBPS RRB PO syllabus and exam pattern, IBPS RRB Clerk syllabus and exam pattern
- Hubs: Banking exams and free bank mocks, IBPS RRB PO mock tests
Sources: IBPS CRP RRBs-XV notification (Main examination structure); IBPS CRP CSA-XVI notification; IBPS tentative calendar 2026-27; SSC CGL 2026 notice (paras 13.9.9 and 13.11.5). Technical content is standard computer fundamentals. Last checked 7 November 2026.